Refrigerating apparatus



Aug. 4, 1936. H. F. SMITH 2,049,732

I REFRIGERATING APPARATUS Original Filed Sept. 13, 1929 .19 Sheets-Sheet 1 4 411omm BIAS mum f Aug. 4, 1936. H. F.. SM ITH 2,049,782 I REFRIGERATING APPARATUS Original Filed Sept. 13, 1929 IQShQGtS-Shfifit 2 W flmmuvbdtflromns v I Aug.4,1\936. H. SMLT'H 2,049,732,

REFRIGERATI NG' APPARATUS I "Original Filed Sept. 43, 1929 19 Sheets-Sheet s W MATTORNEiS Aug. {4, 1936. HP. SMITH REFRIGERATING APPARATUS Original Filed Se t-(1s; 1929. 19 Sheta-Sheet 4 OOHQ . BY Y v 714 Arrogmr;

Aug. 4, 1936. v H. F. SMITH 2,049,782

REFRIGERATING APPARATUS Original Filed Sept ."13, 1929 I 19 Sheets-Sheet? f B! MW'IMAITORNEIS Aug. 4, 1936. H. F;-SMITH 2,049,782

REFRIGERATING APPARATUS Original Filed Sept. 15, 1929 19 Sheets-Sheet s VIL- I G183 G182 G136- 6137 00000000000OOOOOOOOOOOOOOOOOOOOOO INVENTQR 4 CBYW,

- v ATTORNEYS Aug, 4, 1936. H. F. SMITH 2,049,782

REFRIGERATING APPARATUS Original Filed Sept. 13, 1929' l9 Sheets-Sheet 7 uum n- 6 9mm zmmox 34' 15. Jfmm WVIZRAAATTORNEYS 7 Aug. 4, 1936;

cez

c ze

H. F. SMITH 2,049,782

' REFRIGERATI'NG APPARATUS Original Filed Sept. 13, 1929. 19 Sheets-Sheet a .19 Sheets-She t 9 Original Filed Sept. 13, 1929 QQW IIKQENTOR www v S I v 7 g AT ORNEY V g. 4; 193 I v H. F.-SMITH 2,049,782

REFRIGERAT ING APPARATU S Original Fi-led Sept. 15, 1929 l9 Sheets-Sheet 10 K102 Kl I y 7 1. ATTORNEYS A g- 4, 1936. H. F. SMITH 2,049,782

REFRIGERATING APPARATUS Original Filed Sept 13, 1929 l9 Sheets-Sheet ll W V W INVENTOR BY v m g t I l m t y 7M ATTORNEYS Aug. 4, 1936. H. F. SMITH 2,049,782

REFRIGERATFING APPARATUS Original Filed Sept. 13, 1929 19 Shegts-Sheet 1::

y ATTORNEYS Aug. 4, 1936. H. E SMITH 1 2,049,782

REFRIGERATING APPARATUS Original Filed Sept. 13, 1929 19 Sheets-Sheet l4 R122 K123 K11 @551 A a M7 \7 IN ENTOR W /W 7%AIT0RNEYs Aug. 4, 1936.

H. F. SMITH 2,049,782

REFRIGERATING APPARATUS Original Filed Sept. 15, 1929 19 Sheets-Sheet 18 I J mVENTdR I W MAMA/- ATTORNEYS Aug. 4, 1936; H. F. SMITH REFRIGERATINGAPPARATUS 19 Sheets-Sheet l9 Original Filed Sept. 13, 1929 Q M7 :7 INVER'TOR W Mama- (7 7% ATTORNEY? Patented Aug. 4, 1936 UNITED STATES atria-me BEFRIGERATING APPARATUS I ,Harry F. Smith, Dayton, Ohio, assignor, by mesne assignments, to

General Motors Corporation, a

I corporation of Delaware Application September 13, 1929, Serial No. 392,341 Renewed November 16, 1934 28 Claims.

4 crating system, but is not limited to this type.

It is among the objects of the invention to provide an'improved method of and means for controlling the operation of an absorption apparatus which promotes safety and reliable functioning of the system; an improved method of and means for both heating and cooling an absorption system which is eflicient and reliable in operation; an improved absorption system which is free from valves, pumps and similar movingparts for maintaining differences of refrigerant pressure; an improved arrangement for automatically controlling the operation of the system in response to the condition of the system. and

to shut downthe apparatus in the event of abnormal conditions; a control system in which leakage or failure of any part effectively prevents tates the transfer of maintain constant operating characteristics over operation of the refrigerating system; an improved geuerator-absorber structure which faciliheat and which tends to long periods of time; an improved condensing arrangement, specifically-one which may be used nent parts of the system, as will appear in detail below the level of a refrigerating element which it supplies, and in which liquid refrigerant is not-trapped: an improved condenser structure which-condenses both refrigerant and a heat transfer vapor for cooling the generator-absorber; an improved structure of refrigerating element, an improved burner control apparatus, and

'various other features of novelty and improved constructions and arrangements of the compoin the description, drawings and claims.

Fig. 1 is a diagrammatic representation of a refrigerating'system embodying the invention;

Fig. 2 is a diagram of a modified arrangement of refrigerating element;

Fig. 3 is a front elevation of a refrigerating cabinet equipped constructed in accordance with the invention;

Fig. 4 is atop plan. view of a portion of. the

, refrigeration mechanism-shown in Fig. 3, drawn to an enlarged scale; .Fig. 5 is an end. elevation of the apparatus shown. in Fig. 4;

with refrigerating apparatus c is a longitudinal vertical section, partly marshe Fig. 8 is a plan of the burner and the associated control apparatus;

Fig. 9 is a side elevation, partly in section of the burner control valve;

Fig. 10 is a section on an enlarged scale of the 5 burner control valve drawn on the linelll-lll of Fig. 8; Fig. l1 is a section on an enlarged scale of the burner control valve drawn onthe line ll-ll of Fig. 8; 10 Fig. 12 is a vertical section on an enlarged scale of the generator-absorber fl'ue taken on the line lit-I2 of'Fig. 3; p v

Fig. 13 is a section of the burner flue taken on the line l3-l3 of Fig. 12;

Fig. 14 is a section of the stack taken on the line Il-ll of Fig. 12; Fig. 15 is an end elevation of the condenser, the end cap being removed; I

Fig.16 is a longitudinal horizontal section of the condenser on the line 16-46 of Fig. 15;

Fig. 17 is a section of'the condenser on the line i'|'--|'|ofFig'.16; v

Fig. 18 is an enlarged section corresponding to Fig. 6' of a portion of the generator-absorber;-

Fig. 19 is a vertical section of the refrigcrating clement shown in Fig. 3- drawn on the line; l9-l9 of Fig. 20; i, f

- g. 20 is a. vertical longitudinal section of the refrigerating element'on the'line 2MB of Fig.

Fig. 21 is a front, elevation .of the control mechanism, the cover being removed;

I Fig. 22 is a side elevation of the control mecha-, ni'sm; T "35 Fig. '23 is a. section of a portion of the control mechanism on the line 23-23 of Fig. 22;

. Fig. 24 is asection of a. portion of the control on the line 24-24 of Fig. 22 showing the packing bellows springs;

Fig. 25 is a section of a portion of the control on the line 25-290! Fig. 21; Fig.26 is a section of a portion of the tempera:- tureadiustment' control on the line 20-20 of Fig.22;-

Fig. 27 is an enlarged section of the water valve of the control, corresponding to Fig.23;

Fig. 28 is a vertical section through themllum breaking duct of the control on. the line w 2i2lofFlg.22;.

Fig. 29 is asection throughfa portion of the vacuum, duct system on the line "-2! of.1 'ig.21;

' through 3' 

